 In order to enable BitLocker Encryption, open Control Panel, BitLocker Drive Encryption. In the opening BitLocker Drive Encryption window, you will see all removable and non-removable data storage devices connected to this PC. There are two encryption types available for logical partitions. It allows encrypting any built-in non-removable disks system or not. The other type is for encrypting removable or external devices. Let's enable BitLocker in 4DSD. In the window that opens, you have to select how to unlock the disk. The next step in enabling BitLocker is to set up and backup a recovery key in case the main password is lost. I choose Save to a file. After BitLocker is turned on, it will automatically encrypt new files as they are created or modified.